In the case reported here, compound composite odontoma was found in a 63-year-old man. Considering the growth characteristics of odontoma, it is likely that this lesion was of at least 45-50 years' duration. The typically asymptomatic nature of the odontoma and its location, apical to the canine and lateral incisor roots, explain why it was not noticed by the patient nor detected by a dentist for many years. Because definitive diagnosis of odontoma is possible only after histopathological examination of the lesion, surgical excision is advised.